The impact of a universal class-size reduction policy: Evidence from Florida's statewide mandate

Class-size reduction (CSR) mandates presuppose that resources provided to reduce class size will have a larger impact on student outcomes than resources that districts can spend as they see fit. I estimate the impact of Florida's statewide CSR policy by comparing the deviations from prior achievement trends in districts that were required to reduce class size to deviations from prior trends in districts that received equivalent resources but were not required to reduce class size. I use the same comparative interrupted time series design to compare schools that were differentially affected by the policy (in terms of whether they had to reduce class size) but that did not receive equal additional resources. The results from both the district- and school-level analyses indicate that mandated CSR in Florida had little, if any, effect on student achievement.     

The impact of science curricula on student views about the nature of science

This review of the literature focused on three decades of research related to precollege student understandings about the nature of science. Various interpretations of what aspects characterize the nature of science were examined, revealing an agreement among scientists, science educators, and those involved in policy-making arenas that the nature of science is multifaceted and an important component of scientific literacy. A summary of the research regarding the adequacies of student conceptions about the nature of science revealed inconsistent results. Although the majority of studies show that student understandings are less than desirable, there is research that indicates that student conceptions are acceptable. Research on the impact of instructional materials and techniques on student understandings was also reviewed. The effects of language in science instruction, the content emphasis of instructional materials, integrated science curricula, and instruction in general were curricular variables found to have a negative impact on student understandings about the nature of science. Empirical evidence about the success of innovative instructional materials and techniques designed to facilitate more adequate understandings of the nature of science is needed.     

An investigation of the gender differential performance on a high-stakes language proficiency test in Iran

There has been a growing consensus among the educational measurement experts and psychometricians that test taker characteristics may unduly affect the performance on tests. This may lead to construct-irrelevant variance in the scores and thus render the test biased. Hence, it is incumbent on test developers and users alike to provide evidence that their tests are free of such bias. The present study exploited generalizability theory to examine the presence of gender differential performance on a high-stakes language proficiency test, the University of Tehran English Proficiency Test. An analysis of the performance of 2,343 examinees who had taken the test in 2009 indicated that the relative contributions of different facets to score variance were almost uniform across the gender groups. Further, there is no significant interaction between items and persons, indicating that the relative standings of the persons were uniform across all items. The lambda reliability coefficients were also uniformly high. All in all, the study provides evidence that the test is free of gender bias and enjoys a high level of dependability.     

Relationships of general vocabulary, science vocabulary, and student questioning with science comprehension in students with varying levels of English proficiency

This study investigated the influence of general vocabulary knowledge, science vocabulary knowledge, and text based questioning on the science reading comprehension of three types of students who varied in their English language proficiency. Specifically, grade 5 English-Only speakers, English Language Learners in the United States, and students learning English as a Foreign Language in a Spanish-speaking country were compared across the aforementioned variables to examine their relationship to reading comprehension. Findings indicated that general vocabulary, science vocabulary, and questioning contributed significant variance to the explanation of science reading comprehension. However, no particular variable was found to interact with language proficiency in their contribution to science reading comprehension. Findings are discussed in terms of the roles that each variable could play in content area comprehension. Implications for content-area literacy instruction of second-language students are considered.     

Religious belief: the main impact on the perception of the nature of science on student teachers

This study aims to examine the affect of the degree of religiosity of student teachers, and their nationalism and scientific background on their perception of the nature of science (NOS). First year Arab and Jewish religiously observant, traditional and secular students in Israel (101 in number) with different scientific backgrounds participated in the study. The students completed a closed questionnaire with 35 statements that explored diverse aspects of the perception of the NOS. The findings show that previous scientific knowledge or belonging to the Jewish or Arab nation barely impacts the perceptions of the NOS. In contrast, religious belief, whether Jewish or Muslim, had significant impact. The more religious the students the greater weight they afforded culture and society versus science, and their support of the freedom of inquiry and of the tentativeness of science declined. The educational implications of the findings are discussed in view of the social increase in dogmatic religious belief alongside the unreserved exacerbated skepticism of every truth. Emphasis is placed on reinforcing the liberal dialogue approach that does not fear criticizing tradition, according to which it is possible to educate to critical thought without negating religious belief.     

The impact of internal migration on educational outcomes: Evidence from Turkey

Similar to the relation between the inflows of immigrants and educational outcomes that are found in immigration studies, the spatial distribution of internal migrants within a given country also may influence educational outcomes, at least in the short run. This could be particularly true in Turkey, where inter-provincial mobility is high and where striking differences in educational resources and therefore educational success across regions persist. Using the 1990 and 2000 Turkish Censuses, this study exploits variations over time in the inflow of internal migrants across provinces to identify the causal effect of internal migration on natives’ educational outcomes. The evidence suggests that the inflow of migrants lowers natives’ completion rates for middle school and high school. Evidence also indicates that while the negative effects appear to be greater among native children from low-SES households, native high-SES households are able to mitigate these adverse effects for their children. Furthermore, the estimated effects exhibit some differences by children's gender and migrant status.     

GCSE exam stress: student perceptions of the effects on wellbeing and performance

ABSTRACT

In the UK education system, an ‘audit culture’ has led to pressures being placed on students to achieve high grades in their GCSEs. It has been suggested that schools are required to achieve good academic results and look after their students’ wellbeing, causing a conflict in relation to public examinations, such as GCSEs. School staff support both performance and wellbeing by preparing students for exams. However, research suggests that there is a danger that many underperform, or are negatively affected (emotionally) by exam stress, or both. This paper describes a research project within the UK. The aims of which were to explore the views of students who had recently taken GCSE exams, to gain an understanding of how they felt their GCSE experiences affected their wellbeing and performance, to find out what factors contributed to or alleviated their levels of exam stress, and whether theories relating to exam stress such as Achievement Goal Theory could be used to explain the individual differences in levels of exam stress. Findings and conclusions provided ways to improve the support for students during their GCSEs, improving academic performance and wellbeing.     

The occurrence of analogies in elementary school science books

An analogy is a model drawn from one contextand used to support understanding in anothercontext. This study investigates the extent towhich analogies in instructional science booksare provided by authors. The books surveyed areavailable from commercial suppliers andintended for use in the elementary schoolclassroom with 7 to 11 year old children.Eighty texts were analysed for the presence orabsence of analogies. Forty-five of the booksoffered no analogies at all. In the remainingthirty-five books, 92 analogies were found.These were classified in line with earlier workon analogies for older students by Curtis andReigeluth (1984) and the findings arediscussed. The extent to which teachers candraw upon the analogies in such texts tosupport children's understanding isconsidered.     

The effects of new science curricula on student performance

This study summarizes the results of a quantitative synthesis of the retrievable primary research dealing with the effects of new science curricula on student performance. This study synthesizes the results of 105 experimental studies involving more than 45,000 students and utilizes the quantitative synthesis perspective to research integration known as meta-analysis (Glass, 1976). A total of 27 different new science curricula involving one or more measures of student performance are included in this meta-analysis. Data were collected for 18 a priori selected student performance measures. The results of this meta-analysis reveal definite positive patterns of student performance in new science curricula. Across all new science curricula analyzed, students exposed to new science curricula performed better than students in traditional courses in general achievement, analytic skills, process skills, and related skills (reading, mathematics, social studies and communication), as well as developing a more positive attitude toward science. On a composite basis, the average student in new science curricula exceeded the performance of 63% of the students in traditional science courses.     

The impact of lexical inferencing strategies on second language reading proficiency

Abstract. This study focuses on the source of reading problems of English as a second language learners at the high school level. The results indicate that while reading comprehension is impacted by level of receptive vocabulary knowledge, the ability to select and implement word-appropriate lexical inferencing strategies can compensate for low receptive vocabularies in relation to the demands of the text. The ability to make this selection, however, implies not only sensitivity to word structure, but also the ability to implement morphological analysis in conjunction with contextual guessing, where appropriate. These findings suggest that the development of English as a second language reading proficiency may be accelerated by acquisition of the meanings of the most productive affixes of English in conjunction with instruction in the principles of morphological analysis.